Objectives: Detailed understanding of tuberculosis (TB) immunopathology and cytokine/chemokine responses can ultimately lead to the development of new diagnostic tools, especially useful in children where TB diagnosis remains challenging.
Methods: Nineteen cytokine/chemokine responses to Mycobacterium tuberculosis (M.tb) antigens were analyzed in 47 children distributed as follow: 28 with TB-disease (TD), 12 with latent TB and 7 uninfected controls. All the cytokines and chemokines were quantified in a multiplexed microsphere-based assay by using residual plasma from the quantiFERON kit (IFNγ release assay).
Results: IP-10, IL-2, IL-5 and IL-13 were among the best cytokines to diagnose infection as related by the area under ROC curve for IP-10 (0.96, 95%CI: 0.91-1.00), IL-2 (0.98, 95%CI: 0.93-1.02), IL-5 (0.91, 95%CI: 0.81-1.01) and IL-13 (0.97, 95%CI: 0.93-1.00). None of the 5 biomarkers, however, discriminated TB-disease from latent-TB. Finally, lower IL-5 (p = 0.02) and IL-13 (p = 0.02) levels were observed in severe opposed to non-severe TB.
Conclusion: These results suggest that IP-10, IL-2, IL-5 and IL-13 may find a diagnostic application in pediatric tuberculosis and argue against the paradigm of a negative influence of Th2 responses in severe pediatric M.tb infection.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jinf.2013.08.005 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
GeneXpert MTB/RIF Ultra in Pediatric Tuberculosis: How Disease Characteristics Modify Test Performances.
Curr Pediatr Rev
January 2025
Department of Health Sciences, University of Florence, Florence, Italy.
Introduction: The diagnosis of pediatric tuberculosis (TB) is challenging, due to the lower sensitivity of microbiological tests, such as culture and microscopy, compared to their performance in adult cases. Guidelines have introduced molecular tests, including GeneXpert MTB/ RIF and GeneXpert MTB/RIF Ultra. These tests use a real-time polymerase chain reaction method and provide information on M.
View Article and Find Full Text PDFFactors associated with the delay in diagnosis of extrapulmonary tuberculosis at the patient and health system level: A study from a rural setting in India.
PLoS One
January 2025
Centre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Background: With the proportion of tuberculosis cases that are extrapulmonary tuberculosis (EPTB) increasing in recent years, understanding and addressing factors contributing to the prolonged time to diagnosis (TTD) of EPTB patients is vital.
Methods: We enrolled presumptive EPTB patients for a cohort study from 2018-2020 in Ujjain, India. Based on a structured questionnaire, the patients were interviewed for socio-demographic and clinical information, including previously visited health facilities (HF) for this illness.
Tuberculosis healthcare service disruptions during the COVID-19 pandemic in Brazil, India and South Africa: A model-based analysis of country-level data.
PLOS Glob Public Health
January 2025
Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa.
Tuberculosis (TB) is the leading infectious disease cause of death worldwide. In recent years, stringent measures to contain the spread of SARS-CoV-2 have led to considerable disruptions of healthcare services for TB in many countries. The extent to which these measures have affected TB testing, treatment initiation and outcomes has not been comprehensively assessed.
View Article and Find Full Text PDFCommentary: Mixed Infection or Heteroresistance? Pediatric Tuberculosis Still the Achilles Heel of Diagnostic Tools.
Pediatr Infect Dis J
December 2024
From the Global Tuberculosis Program, Baylor College of Medicine, Houston, Texas.
Opsoclonus Myoclonus Ataxia Syndrome: An Atypical Presentation of Tuberculous Meningitis.
Am J Trop Med Hyg
January 2025
Pediatric Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, Rishikesh, India.
Opsoclonus myoclonus ataxia syndrome (OMAS) is a rare neuroinflammatory disorder that is typically associated with paraneoplastic and postinfectious processes. Opsoclonus myoclonus ataxia syndrome has not been previously reported in association with tuberculous meningitis (TBM). This report presents a unique case in which TBM manifested as OMAS, highlighting the complex interplay between tuberculosis and autoimmune neurological conditions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!